Plus (+): increases the speaker's volume Press and hold to continuously increase the volume. The source indicator blinks as the volume increases or decreases. When the source indicator blinks twice, the maximum or minimum volume has been reached

Bluetooth®: press to select the Bluetooth® source. The speaker attempts to connect to the last paired device. Or, if there are no paired devices, the speaker goes into discoverable mode. Once Bluetooth® is selected, press again to set the speaker to discoverable mode and allow pairing with another Bluetooth® device. Press again to go back to connecting mode. While the Bluetooth® source is selected, and no device connects within 5 minutes, the speaker turns itself off.